323663
Descrição
Quiz por gina_evans0312, atualizado more than 1 year ago
|
Criado por gina_evans0312
mais de 10 anos atrás
|
|
Questão 1
Questão
Which Gprotein causes the activation Phospholipase CBeta?
Responda
-
Gq
-
Gs
-
Gi
Questão 2
Questão
How is Phospholipase CBeta activated?
Responda
-
By GTP binding to the alpha subunit of the Gq protein
-
By ATP binding to the alpha subunit of the Gq protein
-
By GMP binding to the alpha subunit of the Gq protein
Questão 3
Questão
What is broken down by phospholipase CBeta?
Responda
-
Phosphatidynositol 4,5 bisphophate
-
Phosphatidynositol 3,5 bisphophate
-
Phosphatidynositol 2,4 bisphophate
Questão 4
Questão
Which product of the PCbeta pathway causes the release of calcium from the ER?
Responda
-
IP3
-
Diacylglycerol
Questão 5
Questão
What role(s) does the released Ca perform?
Responda
-
Activates protein kinase C
-
Activates protein kinase B
-
Activates various Ca dependent protein kinases
Questão 6
Questão
What residues are phosphorylated by the protein kinases activated by this pathway?
Responda
-
Serine
-
Threonine
-
Tyrosine
Questão 7
Questão
Which subunit of Protein Kinase C contains the pseudosubstrate domain?
Responda
-
PS
-
C1A
-
C4
Questão 8
Questão
What is the function of subunut C1A
Responda
-
DAG binding site
-
Calcium binding site
-
Phosphatidyl serine binding site
Questão 9
Questão
Do Ca 2+ and phosphatidyl serine bind to subunit C2?
Responda
-
Yes
-
No
Questão 10
Questão
Which subunits are part of the catalytic domain?
Responda
-
C1A
-
C3
-
C4
-
PS
-
C5
Questão 11
Questão
ATP binds to C2, True or False?
Responda
-
True
-
False
Questão 12
Questão
When IP3 causes the increase in cytosolic calcium, what happens to protein kinase C?
Responda
-
It moves to the membrane and binds with DAG
-
It remains in the cytoplasm and binds with DAG
Questão 13
Questão
Once protein kinase C has bound to DAG in the membrane, what does it then bind to to release the pseudosubstrate from its active site?
Responda
-
Phosphatidylserine
-
Phosphatidylglycine
-
Phosphatidylglutamate
Questão 14
Questão
Which of the following is a tumor promoting agent?
Responda
-
Phorbol ester
-
Orphol ester
-
Phenyl ester
Questão 15
Questão
How do tumor promoting agents effect Phospholipase CBeta?
Responda
-
They bind without being degraded, so it becomes hyperactive
-
They stop the alpha subunit binding, so it becomes unreactive
-
They cause the multiplication of the number of PCbeta enzymes in the cell, causing hyperactivity
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.